5 Dec
2016
5 Dec
'16
4 a.m.
I don't think so, no official one at least. I think you'll have to download Debian 8.5 installation CD and then upgrade to stretch/sid.
ftp://ftp.se.debian.org/cdimage/archive/8.5.0/powerpc/iso-cd/debian-8.5.0-powerpc-netinst.iso ftp://ftp.se.debian.org/cdimage/archive/8.5.0/powerpc/